Free UK Business Calculators
Straightforward UK calculators for tax, pricing, employment, banking and the everyday numbers that come with running a small business: for sole traders, company directors and anyone starting out.
Free to use. No registration. Clear workings. Current UK rates.
- VAT
- Corporation Tax
- Margin
- Mileage
- Holiday Entitlement
Popular calculators
Start with the tools small businesses use most often.
- Tax & CompanyVAT CalculatorAdd VAT to a net price or remove VAT from a VAT-inclusive price.Calculate
- EmployeesSalary CalculatorTake-home pay after Income Tax, National Insurance, pension and student loan.Calculate
- Tax & CompanyCorporation Tax CalculatorCompany tax on your profits, including Marginal Relief between £50,000 and £250,000.Calculate
- Pricing & ProfitGross Margin & Markup CalculatorMargin, markup and profit per unit, plus the price you need for a target margin.Calculate
- Tax & CompanySalary vs Dividend CalculatorCompare how much you keep from different salary and dividend combinations.Calculate
- Tax & CompanySole Trader vs Limited Company CalculatorEstimated take-home from the same profit as a sole trader or through a company.Calculate
- Travel & ExpensesHMRC Business Mileage CalculatorApproved mileage for your own car, van, motorcycle or bicycle at HMRC rates.Calculate
- EmployeesHoliday Entitlement CalculatorStatutory paid annual leave in days or hours, pro-rated for part years.Calculate
Browse by category
Find a calculator by the part of your business you are working on.
Tax & Company
VAT, Corporation Tax, and how you pay yourself from a limited company.
Pricing & Profit
Work out what to charge, what you keep, and how much you need to sell.
Employees
What an employee really costs once National Insurance and pension are added.
Banking, Payments & Finance
The everyday cost of banking, taking card payments and funding unpaid invoices.
Travel & Expenses
Mileage, mileage relief, company car fuel rates and the cost of running a vehicle.
Why use BusinessCalculator?
Free to use
Every calculator, every time, with no paywall.
No registration
No account, no email address, no sign-up step.
Clear workings
See the figures behind each result, not just a total.
Current UK rates (2026/27)
Statutory rates and thresholds kept in one reviewed source.
Plain-English explanations
Guidance written for business owners, not accountants.
Built for quick answers
Straight to the numbers on desktop and mobile.
Built around published UK rates and transparent calculations.
Every statutory calculator uses centrally maintained 2026/27 rates and deterministic formulas, never generative AI. Read our methodology.